Road Runner, the installation

Yesterday my RoadRunner realtime PCM arrived. This little item allows realtime changes to any PCM table that efilive supports. I wasn't able to order the license until the device arrived as I needed the ID and possibly the serial number.

So Ive installed it, but with no license. I now have a disabled car in the driveway! Hopefully the license isn't too far away.

Anyway, on with the install.

For this you will need a 7mm socket and about 20min time. This is on Holdens, other vehicles might take more time.

• First disconnect the battery.
• Then remove the radiator overflow tank. You can do this by pulling it up off its mount and then away from the side towards the engine. its held on in 2 places but just pulls off.
• Then pull the heat shield straight up, it will slide off the PCM surround.
• Next unclip the PCM top cover. There is a tab to the front of the car, if you pull the tab out and then pull up the cover will hinge open from front to back and come away.
• Dig out your 7mm socket and undo the 2 PCM connectors, at this point you might want to consider installing a wire for the Valet mode as well.
• The PCM surround has 2 tabs on the sides which prevent the PCM from lifting straight up. Rather than forcing the sides out to get the PCM out, I cut a small bit off the end so that the PCM comes in and out easier. Decide which option you want to use to get it out. It just lifts straight up once the tabs are dealt with in any case.
• Install is the reverse of removal.

Out with the old. (Note the valet switch which is normally hidden under the radiator fill tank. You can use this to specify max RPM and road speed)



In with the new


Route the USB cable through this hole in the firewall, it drops down neatly at the top left of the passenger foot well.


Once installed I connected my laptop, but could not flash the unit as it reported it as locked. I presume this is because I need to license the device. So now hopefully just a short wait until that arrives and I should be good to go.